单项选择题

We should do everything in our power to develop () alternatives to petrol.

A．audible
B．capable
C．liable
D．viable

相关考题

I didn't help him. I would have ()I didn't have the mon...

单项选择题I didn't help him. I would have ()I didn't have the money.

A．or
B．but
C．otherwise
D．still

When the man came () after the operation he found himse...

单项选择题When the man came () after the operation he found himself back in bed.

A．on
B．in
C．over
D．round